diff --git a/Java/zad1_1/Przedmiot.java b/Java/zad1_1/Przedmiot.java
new file mode 100644
index 0000000..27919cc
--- /dev/null
+++ b/Java/zad1_1/Przedmiot.java
@@ -0,0 +1,11 @@
+package POB_2019.Java.zad1_1;
+
+public class Przedmiot {
+    private String subjectName;
+    public Przedmiot(String name){
+        this.subjectName=name;
+    }
+    public String toString(){
+        return this.subjectName + "JEchane";
+    }
+}
\ No newline at end of file
diff --git a/Java/zad1_1/zad1_1.java b/Java/zad1_1/zad1_1.java
new file mode 100644
index 0000000..42ba44d
--- /dev/null
+++ b/Java/zad1_1/zad1_1.java
@@ -0,0 +1,16 @@
+package POB_2019.Java.zad1_1;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class zad1_1 {
+    public static void main(String[] args) {
+        List<Przedmiot> subjects = new ArrayList<Przedmiot>();
+        subjects.add(new Przedmiot("Ball"));
+        subjects.add(new Przedmiot("Chair"));
+        subjects.add(new Przedmiot("Table"));
+        for(Przedmiot p : subjects){
+            System.out.println(p);
+        }
+    }
+}
diff --git a/Java/zad1_2/Vector2D.java b/Java/zad1_2/Vector2D.java
new file mode 100644
index 0000000..977be72
--- /dev/null
+++ b/Java/zad1_2/Vector2D.java
@@ -0,0 +1,27 @@
+package POB_2019.Java.zad1_2;
+
+public class Vector2D {
+    private int x, y;
+    public Vector2D(int _x, int _y){
+        this.x=_x;
+        this.y=_y;
+    }
+    public Vector2D add(Vector2D vec2){
+        int newX, newY;
+        newX=this.x + vec2.x;
+        newY=this.y + vec2.y;
+        return new Vector2D(newX, newY);
+    }
+    public Vector2D substract(Vector2D vec2){
+        int newX, newY;
+        newX=this.x - vec2.x;
+        newY=this.y - vec2.y;
+        return new Vector2D(newX, newY);
+    }
+    public double multiply(Vector2D vec2){
+        return (this.x*vec2.x + this.y*vec2.y);
+    }
+    public String toString(){
+        return String.format("[%s, %s]", this.x, this.y);
+    }
+}
\ No newline at end of file
diff --git a/Java/zad1_2/zad1_2.java b/Java/zad1_2/zad1_2.java
new file mode 100644
index 0000000..ce13f3e
--- /dev/null
+++ b/Java/zad1_2/zad1_2.java
@@ -0,0 +1,14 @@
+package POB_2019.Java.zad1_2;
+
+public class zad1_2 {
+    public static void main(String[] args){
+        Vector2D vec1 = new Vector2D(5, 11);
+        Vector2D vec2 = new Vector2D(-2, 4);
+        Vector2D vec3 = vec1.add(vec2);
+        Vector2D vec4 = vec2.substract(vec1);
+        double multiplicationResult = vec2.multiply(vec1);
+        System.out.println(vec3);
+        System.out.println(vec4);
+        System.out.println(multiplicationResult);
+    }
+}
\ No newline at end of file
diff --git a/zad6_1.cpp b/zad6_1.cpp
new file mode 100644
index 0000000..9ca73d3
--- /dev/null
+++ b/zad6_1.cpp
@@ -0,0 +1,73 @@
+#include <vector>
+#include <cstdio>
+#include <opencv2/opencv.hpp>
+using namespace std;
+using namespace cv;
+
+class Shape
+{
+public:
+	virtual void draw(Mat &img) = 0;
+};
+
+class Circle : public Shape
+{
+public:
+	Circle(int x, int y, int r)
+		: _x(x), _y(y), _r(r) {}
+
+	virtual void draw(Mat &img) {
+		circle(img, Point(_x, _y), _r, Scalar(0,0,0));
+	}
+
+private:
+	int _x, _y, _r;
+};
+
+class Rectangle : public Shape
+{
+public:
+	Rectangle(int x, int y, int w, int h)
+		: _x(x), _y(y), _w(w), _h(h) {}
+
+	virtual void draw(Mat &img) {
+		rectangle(img, Point(_x, _y),
+			Point(_x+_w, _y+_h), Scalar(0,0,0));
+	}
+
+private:
+	int _x, _y, _w, _h;
+};
+
+int main()
+{
+	const char wnd[] = "test";
+	namedWindow(wnd, WINDOW_AUTOSIZE);
+	int width = 1000, height = 800;
+
+	vector<Shape*> shapes {
+		new Circle(300, 200, 100),
+		new Rectangle(500, 200, 300, 100),
+		new Circle(500, 600, 100),
+		new Rectangle(100, 400, 100, 150)
+	};
+
+	Mat img = Mat::zeros(height, width, CV_8UC3);
+
+	while (true)
+	{
+		img = Scalar(255,255,255);
+		for (Shape* shape : shapes) {
+			shape->draw(img);
+		}
+		imshow(wnd, img);
+		int key = waitKey(40);
+		if ((key & 255) == 27) break;
+	}
+
+	for (Shape* shape : shapes) delete shape;
+        	shapes.clear();
+
+
+	return 0;
+}
\ No newline at end of file
diff --git a/zad6_2.py b/zad6_2.py
new file mode 100644
index 0000000..a328162
--- /dev/null
+++ b/zad6_2.py
@@ -0,0 +1,40 @@
+#!/usr/bin/env python3
+from turtle import *
+
+class Shape():
+    def __init__(self):
+        pass
+    def draw(self):
+        pass
+
+class Circle(Shape):
+    def __init__(self, _posX, _posY, _size):
+        self.posX=_posX
+        self.posY=_posY
+        self.size=_size
+    def draw(self):
+        goto(self.posX, self.posY)
+        pendown()
+        circle(self.size)
+        penup()
+
+class Rect(Shape):
+    def __init__(self, _posX, _posY, _sizeX, _sizeY):
+        self.posX=_posX
+        self.posY=_posY
+        self.sizeX=_sizeX
+        self.sizeY=_sizeY
+    def draw(self):
+        goto(self.posX, self.posY)
+        pendown()
+        for i in range(2):
+            forward(self.sizeX)
+            right(90)
+            forward(self.sizeY)
+            right(90)
+        penup()
+penup()
+shapes=[Circle(-200,100,100),
+        Rect(100,100,200,100)]
+for shape in shapes:
+    shape.draw()
\ No newline at end of file